Presser-foot-attachment holder for sewing-machines



E. SEITZ. I PRESSER FOOT ATTACHMENT HOLDER FOR SEWING MAGHINES.;

No..373,-312. Patented Nov. 15, R1887.

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UNITED STATES PATENT rrrcn.

EDWVARD SEITZ, OF PEORIA, ILLINOIS.

PRESSER-FOOT-ATTACHMENT HOLDER FOR SEWING-MACHINES.

EPECIFICATION forming part of Letters Patent No. 373,312, dated November15, 1887.

- Application filed June 9, 1887.

To all whom, it may concern:

Be it known that I, EDWARD SEITZ, of Peori a, in the county of Peoriaand State of Illinois, have invented certain new and useful Improvementsin Presser-Foot Attachm ents for Sewing- Machines; and I do herebydeclare that thefollowing is a full, clear, and exact description of theinvention, which will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to the letters of reference marked thereon,which form part of this specification.

This invention relates to certain improvements in attachment-holders forsewing-ma chines; and it has for its objects to so construct thepresserfoot that the various devices-such ashem mers, gatherers,braiders,and thelikeemployed in connection with said machines may bereadily and conveniently attached to or removed from the presser-foot,as occasion may require, in changing from one character of work toanother, as more fully hereinafter specified. These objects I'attain bythe means illustrated in the accompanying drawings, in which- I Figure 1represents a side elevation of the presser-foot of a sewing-machineconstructed according to myinvent-ionfshowing a gatherer securedthereto. Fig. 2 is an enlarged vertical sectional view of thepresser-foot attachment and device for securing the same, taken on theline a: w of Fig. 1. Fig. 3 represents a longitudinal sectional viewtaken on the line 3 y of Fig. .2, showing the detached toe of thepresser-foot in place. Fig. 4 is a vertical sectional View of thepresser-foot, showing a modification of my invention. Fig. 5 is avertical sectional view taken on the line :0 m of Fig. 4, and Fig. 6represents a vertical sectional view showing another modification of myinvention.

Referring to the drawings, the letter A indicates the presser-foot of asewing-machine, which is formed with the usual socket,a, and set-screwb, by means of which it may be secured to the lower end of thepresser-foot bar, as usual. The lower portion of the presserfoot isprovided with a rectangular or other shaped horizontal recess, a, whichextends from the front to the rear, and which forms a socket or seat forthe shank d of the various attachments. The resser-foot, as illustratedSerial No. 240,778. (No model.)

in Figs. 1, 2, and 6 of the drawings, is provided with a verticaltapering recess extending through it from side to side, which connectsat its lower endwith the horizontal recess before mentioned, and withinwhich is fulcrumed a cam-lever, B, which works in the tapering recessand draws-in the attachment and holds it in position, against one sideof which bears a small leaf-spring which holds it by frictional contactwhen elevated. The lever is also provided with a stop, 6, at one side,which limits its motion when it is raised. As shown in Figs. 1 and 2,the cam-lever is provided with a lug, g, at its edge, which engages atransverse groove, 71, in the shank d of the attachment when the leveris elevated. The shank d is rectangular in cross-section, so as toaccurately draw in and fit the horizontal recess or socket in thepresser-foot,and is shouldered at i, the shoulder abutting against theforward edge of the presser-foot and forming a stop for the attachmentto limit the extent of its insertion and adjust it accurately in place.

In the modification shown in Figs. 4 and 5 of the drawings the verticaltransverse recess is omitted and in its place is. formed a cylindricalrecess, D, which crosses the horizontal recess at right angles thereto.Through said recess passes and is journaled therein a camshaft, F, whichis provided with a cranlrarm,

K,'at one end, by which it may be turned in its bearings. The said shaftis recessed at one side, as indicated by the letter m, (see Figs. 4 and5,) so that when the crank arm is turned down, the recess will be inline with the horizontal recess in the presser-foot, so as to permit theshank of the attachment to be inserted and withdrawn, and when turned upthe solid cam portion of said shaft will be turned into the transverserecess in the shank, ,so as to draw in, bind, and hold the same to thepresser-foot. In the modification shown in Fig. 6 the edge of thecam-leverenters the transverse slot and binds and holds the shank andits attachment.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, 1s-- 7 1. The combination, with the presser-foot of asewing-machine, having a horizontal recess extending from the front tothe rear of the same, of a sewingmaehine attachment having a shankprovided with a transverse tapering recess, said shank being inserted inthe horizontal recess in the pressenfoot, and the fastening deviceengaging said tapering recess to draw in, bind, and hold the shank andattachment, substantially as specified.

2. The combinatiomwith the Presser-foot having a recess extending fromthe front to the rear of the same, and a transverse vertical recess, ofa cam-lever fulcrumed in said vertical transverse recess, and asewing-machine attachment having a transverse slot in its shank withwhich said cam-lever engages, substantially as specified.

3. The combination, with the resser-foot having recesses,as described,of the cam-lever having a lug at its edge and a stop at one side, thespring bearing against said lever, and a sewing-machine attachmenthaving a recess in its shank with which the cam-lever engages,substantially as specified.

In testimony that I claim the foregoing as my own I affix my signatureinpresence of two witnesses.

EDWARD SEITZ. Witnesses:

O. E. DUFFY, CHAS. M. WERLE.

